130048 20241125101150.0 doi 10.3390/molecules28196829 sideral 136330 ART-2023-136330 eng Barbosa, Maciel L. Evaluation the potential of onion/laponite composites films for sustainable food packaging with enhanced UV protection and antioxidant capacity 2023 Access copy available to the general public Unrestricted Agro-industrial residues have attracted attention for their applications in the field of biodegradable packaging. Recently, our research group has developed onion-based films with promising properties for this type of application due to their non-toxicity, biocompatibility and biodegradability. Therefore, in this study, we investigated the effect of Laponite clay concentration on the physicochemical and antioxidant properties of the onion-based films, which were prepared by a casting method. The XRD and FTIR data confirm the presence of the mineral clay in the onion-based films. These findings are consistent with those obtained from FE-SEM analysis, which revealed the presence of typical Laponite grains. In terms of wettability, the results show that the clay decreases the hydrophilic character of the material but slightly increases the water vapor permeation. Optical characterization revealed that the materials exhibited zero transmittance in the UV region and increased opacity in the visible region for composites containing 5% and 10% Laponite. Furthermore, the antioxidant test demonstrated higher antioxidant potential in the composites compared to the pure films. Consequently, these results suggest that the formation of Laponite and onion composites could be an essential strategy for developing natural polymers in the field of food contact packaging. info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 4.2 2023 CHEMISTRY, MULTIDISCIPLINARY 77 / 231 = 0.333 2023 Q2 T2 BIOCHEMISTRY & MOLECULAR BIOLOGY 88 / 313 = 0.281 2023 Q2 T1 0.744 2023 Analytical Chemistry 2023 Q1 Pharmaceutical Science 2023 Q1 Chemistry (miscellaneous) 2023 Q1 Organic Chemistry 2023 Q2 Physical and Theoretical Chemistry 2023 Q2 Drug Discovery 2023 Q2 Medicine (miscellaneous) 2023 Q2 Molecular Medicine 2023 Q3 7.4 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Oliveira, Leticia M. de Paiva, Robert Dametto, Alessandra C. Dias, Diogenes dos S. Ribeiro, Clovis A. Wrona, Magdalena Universidad de Zaragoza (orcid)0000-0003-2052-3012 Nerín, Cristina Universidad de Zaragoza (orcid)0000-0003-2685-5739 Barud, Hernane da S. Cruz, Sandra A. 2009 750 Universidad de Zaragoza Dpto. Química Analítica Área Química Analítica 28, 19 (2023), 6829 [16 pp.] Molecules (Basel, Online) Molecules 1420-3049 5476562 http://zaguan.unizar.es/record/130048/files/texto_completo.pdf Versión publicada 2776413 http://zaguan.unizar.es/record/130048/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:130048 articulos driver 2024-11-22-12:06:33 ARTICLE